RD Instruments WorkHorse User Manual

RD Instruments WorkHorse User Manual

Mariner adcp
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WorkHorse
Mariner ADCP
User's Guide
RD Instruments
P/N 957-6169-00 (April 2005)
Acoustic Doppler Solutions

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Summary of Contents for RD Instruments WorkHorse

  • Page 1 WorkHorse Mariner ADCP User’s Guide RD Instruments P/N 957-6169-00 (April 2005) Acoustic Doppler Solutions...
  • Page 3: Table Of Contents

    WorkHorse Care..........................11 General Handling Guidelines ......................11 Assembly Guidelines ........................11 Deployment Guidelines ........................12 Setup the WorkHorse Mariner ADCP.................... 13 Serial Communication ........................13 What if the WorkHorse Does Not Respond..................13 Software............................14 System Requirements........................14 Software Installation..........................14 Power ............................... 15 Bench-Top Battery Power Requirements..................16 Operation Modes ..........................16...
  • Page 4 Figure 13. Prepare the ADCP......................24 Figure 14. Real-Time Deployment....................25 List of Tables Table 1: WorkHorse Mariner River Application Guide ..............2 Table 2: WorkHorse Mariner Real-Time Application Guide ............3 Table 3: Spare Parts ........................10 Table 4: WorkHorse Software Main Modules ................
  • Page 5: Introduction

    Introduction Thank you for purchasing the RD Instruments (RDI) Mariner WorkHorse. This guide is designed to help first time WorkHorse users to set up, test, and deploy their ADCP. This guide is designed for use with the other WorkHorse Technical Manual guides.
  • Page 6: Workhorse Mariner Adcp Applications

    WorkHorse Mariner ADCP User's Guide WorkHorse Mariner ADCP Applications The WorkHorse Mariner is designed to measure real-time current profiles of coastal, inshore, and open ocean water current structures from temporary or permanent mounting in a vessel. It gives fine along-track resolution thanks to RDI’s superior low-noise data, including bottom tracking.
  • Page 7: Table 2: Workhorse Mariner Real-Time Application Guide

    WorkHorse Mariner ADCP User's Guide The WorkHorse Mariner ADCP can also be used in other moving vessel real time applications that take advantage of the Mariner’s bottom tracking abili- ties. WinRiver is the most often used software package for Mariner ADCP setup, river discharge data collection, and data review.
  • Page 8: System Overview

    WorkHorse Mariner ADCP User's Guide System Overview The Mariner ADCP system consists of a WorkHorse Monitor ADCP with Bottom Track mode, cables, Deck Box, Mounting Plate, and software. The Mariner system requires the addition of a Windows® compatible computer to collect data.
  • Page 9: Deck Box Overview

    WorkHorse Mariner ADCP User's Guide PRESSURE SENSOR (OPTIONAL) URETHANE FACE THERMISTOR BEAM 3 MARK TRANSDUCER HEAD HOUSING END-CAP I/O CABLE CONNECTOR Figure 2. Mariner ADCP Overview Deck Box Overview The deck Box contains all interfaces to/from the ADCP, computer/terminal, optional vessel gyrocompass, and power.
  • Page 10 WorkHorse Mariner ADCP User's Guide – Channel 1 In indicates data transmission from the com- Data In/Out LEDs puter to the ADCP. Channel 1 Out indicates data transmission from the ADCP to the computer. – The LCD Display shows the vessel’s gyro heading.
  • Page 11 WorkHorse Mariner ADCP User's Guide to remove ADCP (Ship) motion from the data. The output from the J28 deck box connector is a serial data string of gyro heading, pitch, and roll. The format of this string is: $PRDID,±ppp.pp,±rrr.rr,hhh.hh (where p is pitch, r is roll, and h is heading;...
  • Page 12: Mounting Plate Overview

    WorkHorse Mariner ADCP User's Guide FILTER INTERFACE (J18) RS-232/RS-422 COMMUNICATION PCB POWER SUPPLY FUSE GYRO INTERFACE PCB Figure 5. Deck Box (Top View) Mounting Plate Overview The Mounting Plate is a bronze plate that helps mount the transducer head to a vessel. For installation instructions, see the Maintenance Guide.
  • Page 13: I/O Cable Overview

    WorkHorse Mariner ADCP User's Guide I/O Cable Overview Always remove the retaining strap on the end-cap underwater-connect cable and dummy plug when disconnecting them. Failure to do so will break the retainer strap. Do not apply any upward force on the end-cap connector as the I/O cable is being disconnected.
  • Page 14: Optional Flash Memory Card

    Digital Signal Processor (DSP) board inside the Workhorse’s electronics. To recover data, the card can be removed and used in a personal computer (PC), or left in the Workhorse, and accessed by using WinSC (see the WinSC and PlanADCP User's Guide).
  • Page 15: Spare Parts

    WorkHorse Care This section contains a list of items you should be aware of every time you handle, use, or deploy your WorkHorse. Please refer to this list often. General Handling Guidelines • Never set the transducer on a hard or rough surface. The urethane faces may be damaged.
  • Page 16: Assembly Guidelines

    ADCP to flood. Do not risk a deploy- ment with damaged O-ring surfaces. • Do not lift or support a WorkHorse by the external I/O cable. The connector or cable will break. Assembly Guidelines •...
  • Page 17: Setup The Workhorse Mariner Adcp

    WorkHorse Mariner cables on your workbench. You will need a container of water large enough to submerge the WorkHorse’s transducer head into during testing (two to three inches of water is sufficient). Testing the WorkHorse out of water may cause some tests to fail but causes no harm to the WorkHorse.
  • Page 18: What If The Workhorse Does Not Respond

    WorkHorse technical manual. Software RDI has utility programs to help you set up, use, test, and trouble-shoot your WorkHorse ADCP. Each program has a help file that you can print, or you can view help while running the program. Table 4:...
  • Page 19: Software Installation

    VDC) will increase the transmitted power. The transmitted power is increased 6 DB if you double the input voltage from 24 VDC to 48 VDC. For a 300kHz WorkHorse ADCP, each additional DB will result in an increase in range of one default depth cell.
  • Page 20: Bench-Top Battery Power Requirements

    In the Command Mode Whenever you wake up your WorkHorse, power dissipation increases from less than one mw to around 2.2 w. If you leave the WorkHorse in command mode without sending a command for more than five minutes, the Work- Horse automatically goes to sleep.
  • Page 21: Testing Your Workhorse

    WorkHorse transducer face is immersed water. Continuously updates sensor display. Satisfy yourself that the Rotate and tilt WorkHorse and watch the readings make sense. readings on the display change. Beam continuity test. Follow instructions All beams must pass.
  • Page 22: Compass Calibration

    Preparing for Calibration a. Place the Workhorse on a piece of strong cardboard on top of a smooth wooden (non-magnetic) table. If a wooden table is not available, place the Workhorse on the floor as far away from metal objects as possible.
  • Page 23: Compass Calibration Verification

    NOTE. Verify the compass if you have just replaced the memory module, or any ferrous metals is relocated inside or around the Workhorse housing. Calibrate the compass if the batteries have been replaced (see “Compass Calibration Procedure,” page 20).
  • Page 24: Compass Calibration Procedure

    The built-in automated compass calibration procedure is similar to the alignment verification, but requires three rotations instead of one. The Workhorse uses the first two rotations to compute a new calibration matrix and the third to verify the calibration. It will not accept the new matrix...
  • Page 25: Figure 11. Compass Alignment

    WorkHorse Mariner ADCP User's Guide g. The third rotation requires the ADCP to be tilted 15 degrees in another direction than from the first and second rotations. Follow the on-screen instructions to orient the ADCP correctly. h. If the calibration procedure is successful, it records the new calibration matrix to nonvolatile memory.
  • Page 26: Internal Pressure Sensor

    WorkHorse Mariner ADCP User's Guide Internal Pressure Sensor If you have the optional pressure sensor installed in your ADCP, use the AZ-command to zero out the pressure sensor at the deployment site. a. Connect and apply power to the system as described in Figure 9, page b.
  • Page 27: Deployment Guide

    WorkHorse Mariner ADCP User's Guide Deployment Guide Use the following steps and the Quick Reference card to setup the Work- Horse for a deployment. 11.1 Deployment Checklist Test the ADCP using BBTalk Seal the ADCP for deployment Install new o-rings; use silicone lubricant...
  • Page 28: Prepare The Adcp For Deployment

    • Test the ADCP using BBTalk. Some tests will fail if the ADCP is not placed in water while the tests are being run. • Desiccant lasts a year at specified WorkHorse deployment depths and temperatures. Remember that desiccant rapidly absorbs moisture from normal room air.
  • Page 29: Deployment Software

    • Verify data integrity (WinRiver or VmDas) • Display and process your data (WinRiver or VmDas) The WorkHorse software is designed to allow you to set up your WorkHorse to get the best possible data without having to understand and use Work- Horse commands.
  • Page 30: Send The Deployment Commands

    'What' is the Data? The WorkHorse records velocity data in units of mm/s. Calibration depends on how well the WorkHorse knew the speed of sound (which it computed based on its measured temperature and the salinity value it was given). A salinity error of 5 ppt introduces less than 0.5% velocity error.
  • Page 31: Few Principles Of Operation

    • WorkHorse measurements are automatically corrected for tilts up to ±20°. In addition to correcting for the beam point- ing angles, the WorkHorse maps depth cells to other cells at the same depth. • If you want to make measurements near the surface from a bottom-mounted WorkHorse, you should minimize the tilt.
  • Page 32: Technical Support

    WorkHorse Mariner ADCP User's Guide Technical Support If you have technical problems with your instrument, contact our field ser- vice group in any of the following ways: RD Instruments RD Instruments Europe 9855 Businesspark Ave. 5 Avenue Hector Pintus San Diego, California 92131...

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